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Note 31 - Related Party Transactions (Details Textual) - USD ($) $ / shares in Units, $ in Thousands																			1 Months Ended									12 Months Ended
	Jun. 26, 2021	Mar. 15, 2021	Mar. 05, 2021	Feb. 26, 2021	Dec. 14, 2020	Oct. 13, 2020	Oct. 01, 2020	Sep. 29, 2020	Sep. 08, 2020	Feb. 03, 2020	Jan. 31, 2020	Dec. 30, 2019	Nov. 07, 2019	Oct. 21, 2019	Sep. 30, 2019	Sep. 29, 2017	Oct. 03, 2016	Aug. 28, 2015	Mar. 31, 2021	Oct. 31, 2020	Dec. 31, 2019	Oct. 31, 2019	Mar. 31, 2019	Jan. 31, 2019	Dec. 31, 2018	Jan. 31, 2017	Sep. 30, 2013	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2022	Dec. 01, 2020	Jul. 31, 2018
Preferred Stock, Shares Issued, Total (in shares)																												27,413,098	27,413,098
Payments to Acquire Equity Method Investments																												$ 8,143	$ 12,675	$ 4,352
Stock Issued During Period, Value, New Issues																												9,076
Due from Related Parties, Total																												4,581	2,812
Equity Method Investments																					$ 3,799				$ 0			48,238	$ 13,482	3,799
Private Repurchase Transaction [Member]
Treasury Stock, Shares, Acquired (in shares)													1,000	23,000
Treasury Stock, Value, Acquired, Par Value Method													$ 5	$ 230
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)													$ 4.50	$ 10.00
Saving Plan 401K [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match																													50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay																													3.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount																												287	$ 270	$ 265
Common Stock [Member]
Stock Issued During Period, Value, New Issues																												$ 3
SPAC Funds [Member]
Equity Method Investment, Ownership Percentage																												1.80%
U.S. Insurance JV [Member]
Equity Method Investment, Ownership Percentage																												3.10%
CREO JV [Member]
Equity Method Investment, Ownership Percentage																												7.50%
CK Capital Partners B.V. [Member]
Equity Method Investment, Ownership Percentage																					45.00%									45.00%
Equity Method Investment, Quoted Market Value																					$ 18									$ 18
AOI [Member]
Equity Method Investment, Ownership Percentage																					10.00%									10.00%
Equity Method Investment, Quoted Market Value																					$ 1									$ 1
Payments to Acquire Equity Method Investments																					1
FlipOs [Member]
Other Investments, Total																												$ 566
Insurance SPAC [Member]
Payments to Acquire Equity Method Investments																														3,775
Equity Method Investments																					3,222				$ 0			$ 4,543	9,807	3,222
FTAC IV Sponsor [Member]
Equity Method Investment, Quoted Market Value																													1
Equity Method Investment, Shares Purchased (in shares)								24,547
FTAC IV Sponsor [Member] | Founder Shares [Member]
Equity Method Investment, Shares Purchased (in shares)																									81,825			140,000
FTAC Olympus [Member]
Equity Method Investment, Aggregate Cost																													40
FTAC V Sponsor [Member]
Equity Method Investment, Aggregate Cost					$ 40
Equity Method Investment, Additional Shares Received for Services (in shares)					35,000
FTAC Olympus Sponsor [Member]
Equity Method Investment, Shares Purchased (in shares)									399,741
Equity Method Investment, Additional Shares Received for Services (in shares)	35,000								19,987
Equity Method Investments	$ 40								$ 40
FTAC Athena Sponsor [Member]
Equity Method Investments				$ 40
Equity Method Investment, Shares Received from Services Provided (in shares)				35,000
FTAC Hera Sponsor [Member]
Equity Method Investments			$ 40
Equity Method Investment, Shares Received from Services Provided (in shares)			35,000
FTAC Parnassus Sponsor [Member]
Equity Method Investments		$ 40
Equity Method Investment, Shares Received from Services Provided (in shares)		35,000
Other SPAC Sponsor Entities [Member]
Equity Method Investment, Ownership Percentage																												11.30%
Payments to Acquire Equity Method Investments																														0
Equity Method Investments																					0				$ 0			$ 38,095	363	0
Sponsor Entities [Member] | Insurance SPAC [Member]
Equity Method Investment, Ownership Percentage						26.50%
Operating LLC [Member] | Insurance SPAC II [Member]
Service Fees, Per Month																												$ 20
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners																												46.10%
Operating LLC [Member] | Insurance SPAC III Sponsor Entities [Member]
Service Fees, Per Month																													20
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners																												47.30%
Series F Preferred Stock [Member]
Preferred Stock, Shares Issued, Total (in shares)												22,429,541																22,429,541
TBBK [Member]
Interest Expense, Related Party																													0
Daniel G. Cohen [Member]
Legal Fees												$ 6
Stock Issued During Period, Value, New Issues												$ 4,351
Daniel G. Cohen [Member] | CK Capital Partners B.V. [Member]
Equity Method Investment, Quoted Market Value																					$ 17									$ 17
Daniel G. Cohen [Member] | Series F Preferred Stock [Member] | COHN, LLC [Member]
Minority Interest, Shares Issued (in shares)												370,881
Preferred Stock, Shares Issued, Total (in shares)												12,549,273									12,549,273									12,549,273
CBF Cohen Bros. Financial [Member]
Related Party Transaction, Amounts of Transaction																$ 8,000
DGC Trust/CBF [Member]
Related Party Transaction, Amounts of Transaction																10,000
Related Party Transaction, Purchases from Related Party																			$ 4,000	$ 2,500		$ 1,500
EBC Family Trust [Member]
Related Party Transaction, Amounts of Transaction																											$ 4,000
Notes Payable, Related Parties																											2,400
Stock Issued During Period, Value, New Issues																											$ 1,600
Pensco Trust Company, Custodian fbo Edward E. Cohen IRA [Member] | Contingent Convertible Senior Notes [Member]
Related Party Transaction, Convertible Notes Purchased Between Related Parties										$ 4,386								$ 4,386
JKD Capital Partners I, LTD [Member]
Related Party Transaction, Amounts of Transaction											$ 2,250
Investments In and Advance To Affiliates Amount Of Equity																	$ 6,000							$ 1,268		$ 1,000
DGC Trust [Member]
Related Party Transaction, Amounts of Transaction																$ 2,000
DGC Trust [Member] | Payments to Redeem Financial Instrument [Member]
Related Party Transaction, Amounts of Transaction															$ 2,000
DGC Trust [Member] | IMXI [Member] | Common Stock [Member]
Investment Owned, Balance, Shares (in shares)												291,480
Investment Owned, at Fair Value												$ 3,428
DGC Trust [Member] | Series F Preferred Stock [Member]
Preferred Stock, Shares Issued, Total (in shares)												9,880,268
FinTech Masala [Member]
Consulting Fees Per Month							$ 1																									$ 1	$ 1
Betsy Cohen [Member] | Sponsor Entities [Member]
Investments In and Advance To Affiliates Amount Of Equity																							$ 2
Betsy Cohen [Member] | SPAC II Sponsor Entities [Member]
Investments In and Advance To Affiliates Amount Of Equity							$ 1																						1
Insurance SPAC [Member]
Related Party Transactions, Agreed Amount To Lend						$ 750
Due from Related Parties, Total						650
Proceeds from Related Party Debt						650
Insurance SPAC [Member] | Operating LLC [Member]
Service Fees, Per Month						$ 10
Insurance SPAC II [Member]
Related Party Transactions, Agreed Amount To Lend																												$ 750
Due from Related Parties, Total																												0
Insurance SPAC III Sponsor Entities [Member]
Related Party Transactions, Agreed Amount To Lend																												810
Due from Related Parties, Total																												500
Insurance SPAC III Sponsor Entities [Member] | Forecast [Member]
Due from Related Parties, Total																															$ 310
FinTech Acquisition Corp III [Member] | COHN, LLC [Member]
Investment Owned, Balance, Shares (in shares)																									23,300
Chief Financial Officer [Member] | Private Repurchase Transaction [Member]
Treasury Stock, Shares, Acquired (in shares)													1,000
Treasury Stock, Value, Acquired, Par Value Method													$ 5
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)													$ 4.50
Zucker and Moore, LLC [Member]
Operating Lease, Expense																												96	$ 96	$ 96
TBBK [Member]
Interest Expense, Related Party																												$ 0

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